/Engine/Source/Editor/UnrealEd/Classes/CookOnTheSide/CookOnTheFlyServer.h
Recompile any global shader changes if any are detected then clear the cooked platform data so that they can be rebuilt
return true if shaders were recompiled
bool RecompileChangedShaders ( const [TArray](API\Runtime\Core\Containers\TArray)< const [ITargetPlatform](API\Developer\TargetPlatform\Interfaces\ITargetPlatform) * > & TargetPlatforms )